look up the different ages under this cgc link   https://www.cgccomics.com/resources/glossary/ GOLDEN AGE. CGC Registry term for a period of comic book publishing that ran from Action Comics #1 (June 1938) through 1959.View the top Golden Age comic sets. SILVER AGE. CGC Registry term for comics published 1960 through 1969.View the top Silver Age comic sets. BRONZE AGE. CGC Registry term for comics published 1970 through 1979.View the top Bronze Age comic sets. COPPER AGE